5x Swaging Tool Drill Bit Set Air Conditioner Copper Pipe Flaring Tube Expander Feature: Swaged ToolA product of the swaging process, the tool goes into the HVAC system. MaterialThe forging spinning tool is made of high carbon steel, which is durable and not easy to break, and wear-resistant. 5 DIFFERENT SIZES5 swaged tool bits in common HVAC pipe diameters: 3/4" (19mm), 5/8" (15.9mm), 1/2" (12.7mm), 3 /8" (9.5mm), 1/4" (6.3mm); Overall Length: 63/61/56/53/50mm. [Function] When installing the air conditioner, expand the copper pipe to connect the two copper pipes to each other. Standardized for hard and soft copper, easy to braze forgings. (It needs to be installed on the hand drill.) Easy to InstallThe swage tool bit needs to be installed on the hand drill. Great for installers, whether you're just learning or have been doing it all the time. Specification: Material: High carbon steel Size: 3/4" (19mm), 5/8" (15.9mm), 1/2" (12.7mm), **3/8" (9.5mm), 1/4" (6.3mm) Overall length: 63/61/56/53/50mm Colour: Black Quantity: 5PCS Packing list: 5* reamer